Adding and listing machine



May 20, 1924; v

c. B. CORELL ADDING AND LISTING MACHINE Filed g- 1921 4 Sheets-Sheet 1 Inventor,

C l lftbfi Burt Corell By wa @44 At kor'neyi May 20 1924.

1,494,533 c. B. CORELL.

ADDING AND LISTING MACHINE Filed Aug; 12 1921 4 Shegts-Sheet 2 Pi g. 2.

Inven hut,

Clifton Burt Coral],

May 20, 1924. v 1,494,533

C. B. CORELL ADDING AND LISTING MACHINE Filed ug- 12. 1921 4 Sheets-Sheet 5 3 566 Invenkor,

Clifton Burt Corell,

By W J7 KMVL At korney.

Patented May 20, 1924.

UNITED STATES v v 1,494,533 PATENT OFFICE.

CLIFTON BURT CORELL, OF NEW YORK, N. Y., ASSIGNOR TO GRAFF, WASHBOURNE &

' DUNN,.OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

ADDING AND LISTING MACHINE.

Application filed August 12, 1921. Serial No. 491,679.

To all whom it may concern:

Be it known that I, CLIFTON BURT CORELL, a citizen of the United States of America, and a resident of the city of New York, borough of Manhattan, and State of New York, have invented certain new and useful Improvements in Adding and Listing Machines, ofwhich the following is a specification.

This invention relates particularly to a machine for listing amounts which are being added on an adding machine of a type that comprises a series of computing mechanisms each consisting of a pair ,of wheels connected by an endless chain the adding being effected by drawing on the chains with a stylus. Thelisting machine is organized as an attachment so that the adding ma-' chine may be operated and will function properly either with or without the connectionwith the listing machine.

The object of this invention is to provide a listing machine of this character of reliable and substantial construction and in compact from.

In the accompanying four sheets of drawings which form a part of this sepcification Figure 1 is a side elevation with the frame broken away of a listing machine which embodies this invention to ether with an adding machine through w ich the listing machine is operated.

Fig. 2 is a plan of the adding and listing machine with the frame of the adding machine broken away.

Fig. 3 is a plan of the listing with the frame in section.

Fig. 4 is a transverse section on the line machine IV-IV of Figs. 1 and 3 showing the inking rollers.

Fig. 5 is a transverse section on the line VV of Figs. 1 and 3 showing the listing wheels in section.

Fig. 6 is a transverse section on the line VI-VI of Figs. 1- and 3 showing the sprocket connections between the adding machine and the listing wheels and the disconnecting mechanism.

Fig. 7 shows the connection between the operating lever and the printing rod and the feed rod.

The listing machine is illustrated in association with an adding machine in which there is a series of computing wheels 10, 10

and a series of reset wheels 11, 11. Chains 12, 12 connect the computing and resetwheels. A computing wheel, correspondlng reset wheel and connecting chain constitutes one of the series of computing mechanisms of successive denominations, and each computing mechanism except the one to the extreme left is a lower computing mechanism with respect to the one to the left which is the next higher computing mechanism. The computing wheels of the lower computing mechanisms carry pawls, 13, 13 through which connection is made with the computing wheels of the next higher computing mechanisms for carrying. The computing wheels have digits inscribed on their peripheries which show the totals and the wheels are mounted on a fixed shaft 14. Flanged disks 15, .15 pinned to the shaft, separate the wheels. The carrying pawls travel'within the flanges which have openings through which the pawls protrude for engagement with the teeth of the next wheel in itself a complete operative device and for further details which are applicable to it reference is made to my copendin ap lication filed concurrently herewith. eria No. 491,678.

Mechanism constituting the listing machine is carried in a-separate frame from the frame in which the adding mechanism is carried so that the two can be readily separated. The two frames are of the same lengths and widths where they come together and are adapted to fit together, the listing machine being placed under the adding machine.

A series of listing mechanisms corresponding to the series of computing mechanisms of the adding machine include listing wheels 20, 20, and sprocket wheels 21, 21 through which the listing wheelsare connected to the lower runs of the adding machine chains. Gears 22, 22 are attached to the sprocket wheels and engage gears 23, 23 which are attached to the listing wheels.

Disconnecting fingers 24, 24 lie along side of the sprocket wheels and when lifted raise the chains out of engagement with the sprockets. The points of connectlon are preferably about midway of the runs of the chains and the chains have sufficient slack to permit the required amount of deflect on. The sprocket wheel of each lower computing mechanism as it turns engages a pm which projects from the disconnecting finger of the next hi her computing mechanism and correspondmg listing wheel, l1ftS. t l 11S finger and disconnects this com' utlng mechanismand listing wheel so that i there should be a carry, the carry will not be communicated to the listing mechanism. A pm 26 is carried by the disconnecting finger of eaph lower computing mechanism and underlies the disconnecting finger of the next higher computing mechanism. In consequence, when anyfinger is lifted, all of the fingers 'to the left are also lifted, and all of the higher computing mechanisms are disconnected from their corresponding listing wheels so that in event of a carry extending through several higher computing mechanisms it will not be communicated to any of the corresponding listing wheels. As soon as the sprocket by which a finger is lifted stops turning the fingers fall back by grav- .ity and the pin by which the finger was lifted drops back into a notch in the sprocket wheel.

Provision is also made for disconnecting all of the computing mechanisms from the listing wheels during resetting of the computing mechanisms through the disconnecting fingers. They are all mounted on a shaft 27 and the first disconnecting fin er has arearwardly projecting arm 28 which is carried to the outside of the frame through a slot 29 in the frame and its tip engages a notch 30 inth'ehub of the resetting crank when the crank is in normal position. As soon as the crank starts to turn the ti of the arm is'forced out of the notch, all 0 the disconnecting fingers are lifted and the computing and listing mechanisms are completely disengaged from each other. \Vhen the crank has been turned a full turn to effect resetting, the arm reengages the notch and the disconnecting fingers fall back and permit the chains to again engage the sprocket wheels. 7

The listed number is printed on a strip of paper which is fed from a reel 31, each trunnion of which rests in a notch 31 to permit removal of the reel. The paper is ledhetween feed rolls 32, 33 and between a platen 34, which consists of a sheet-metal holder 34 and a pad 34, and the under side of the listing wheels, and out through a slot 34". The platen is pivoted at 35 and presses the paper against the listing-wheels on drawing forward an operating lever 36, from the normal position shown in Fig. 1. The operating lever is fast on a shaft 36 as is also a' twoarm member 36". A printingrod 37 connected with this lever through the two-arm member carries a lug 38 which is beveled on both its upper and under sides and is located so that on initial movement of the operating lever it will ride over a prong 39 attached to the platen and cause the platen to press the paper against the listing wheels. On the return movement the lug passes under the prong and the platen is not pressed against the listing wheels. The prong is pivoted to the platen so that it has a slight vertical movement independently of the platen to let the lug pass eitherabove or below it. The printing rod isguided by the platen pivot which passes through a slot in the rod and also by a projecting pin 37 from the rod which travels in a slot in the side of the supporting frame. with the operating lever through the twoarm member, carries a pawl 41 which engages a ratchet 42 attached to one of the feed rolls, and feeds the paper during the latter part of th forward movement of the operating lever. The side of this pawl is in frictional engagement with the side of the supporting frame and is thereby rocked into engagement with the ratchet on forward movement ofthe feed rod, and is rocked out of engagement with the ratchet when the feed rodis drawn back. Engagement and feeding does not commence until there has been suflicient movement to effect the printing. A lever 43' engages this rod and a spring 44 bears against the lever and effects the automatic return of the operating lever and connected parts. The tip of this lever passes through a slot near the end of the feed rod and travels in a slot in the side of the supporting frame and the feed rod is thereby guided.

The sprocket wheels and attached gears turn on a shaft 45, and this shaft is carried in a frame 46 pivoted at 47 so that by rocking this frame the ears between the sprocket wheels and the listing wheels can be separated. The gears are held in engagement by a projection 48 on the feed rod when the operating lever is in its normal position. When the operating lever is drawn forward the projection from the feed rod is moved away and separation of the gears is effected by a spring 49. This permits resetting of the listing wheels without the movement being transmitted to the adding mechanism.

The listing wheels have reset lugs 50, 50 and, are mounted on a reset shaft 51 with reset pins 52, 52. A comb 53 normallv locates the wheels so that the reset pins will not be in the paths of the lugs when the listing wheels are being set for listing, but on drawing forward the operating lever far enough to complete the printing and release A feed rod 40, connected for each listing wheel.

of the platen, on further movement a cam 54 on the end of the comb is engaged and the comb and gears shifted so as to bring the reset lugs carried by the listing wheels into the paths of the reset pins on the shaft. On further forward movement of the operating.

lever a segment 55 is engaged and in mesh with the segment is a pinion 56 on the reset shaft through which the shaft is rotated and the listing wheels arereset.

On return of the operating lever the segment isreturned to its initial position, the shaft on which the listing wheels are mounted is turned back to its initial position, a

bell-crank 57 is engaged by the operating lever and through it the comb is shifted back thereby returning the listing wheels to their original'positlon, and the projection on the feed rod returns into engagement the gears between the sprockets and listing wheels so that the listing wheels are again connected through the sprockets with the chains and will again be set on operation of the adding machine.

Inking of the listing wheels is effected by inking rollers 58, 58, of which there is one These rollers are carried in bell-crank frames 59, 59 and drawn against the listing wheels by springs 60, 60. The listing wheels are formed with type faces on their peripheries, and notches between the type faces, and the inking r0llers are positioned so that each will rest in a notch and serve to locatethe wheel with one of the type in printing position. The bell-crank frames are mountedon a plate (31 which is hinged at 62 so that it can be turned out and carry the inking rollers with it to an accessible position for reinking.

.Legs 63, 63 are hinged at one end of the bottom and may be turned out to the position indicated in dottedlines so that the adding and listing machine can rest on a table at a convenient angle for use. A cover 64 which is hinged at the opposite end of the frame from the legs can be closedv with the legs either folded into grooves'in the frame as shown in full lines or folded out as shown in dotted lines and it secures the legs in either position. The cover is a sociation with an 'adding machine which comprises a series of computing mechanisms of successive denominations and carrying devices through-which each lower computing mechanism operates the next higher computing mechanism, the combination of a series of listing mechanisms of successive denominations, connections between each computing mechanism and the corresponding listing mechanism, and means operating with the operation of each lower computing mechanism and its connected listing mechanism to effect the disconnection of the higher computing-and listing mechanisms.

2. In a listing machine adapted for association with an adding machine which comprises a series of computing mechanisms of successive denominations each consisting of a pair of wheels connected by an endless chain and carrying devices through which each lower computing mechanism operates the next higher computing mechanism, the combination of listing wheels, a sprocket connection between the chain of each computing mechanism midway of one of its runs and the corresponding listing wheel, and means operating with the operation of each lower computing mechanism and its connected listingmechanism to lift the chains of the'higher computing meclmnimns from the sprocketconnections with their corresponding listing wheels.

3. In a listing machine adapted for associationwith an adding machine which comprises a series of computing mechanisms of successive denominations with reset wheels and a reset shaft therefor, the combination of a series of listing mechanisms of successive denominations, connections between each computing mechanism and the corresponding listing mechanism, and means 0 erating with the reset shaft to effect the disconnection of the computing and listing mechanisms. 0

4. In alisting machine adapted for association'with' an adding machine which comprises a series of computing mechanisms of successive denominations each consisting of a pair of wheels connected by an endless chain, one of the wheels of eachpair being a reset wheel and having a reset shaft therefor, the combination of listing wheels, a sprocket connection between the chain of each computing mechanism midway of one of its runs and the corresponding listing wheel, and means operating with the reset shaft to lift the chains of the computing mechanisms from the sprocket connections.

5 Ina listing machine adapted for association with an adding machine which comprises a series of computing mechanisms of successive denominations each consistin of a pair of wheels connected by an on less chain, one ofthe wheels of each pair being a reset wheel and having a reset shaft therefor, and carrying devices through which each lower computing mechanism operates the next higher computing mechanism, the

combination of listing wheels, a sprocket connection between the chain of each computing mechanism midway ofone of its runs and the corresponding listing wheel, means operating with the operation of each lower computing mechanism and its connected listing mechanism to lift the chains of the hi h or com'puting mechanisms from the sproc et. connections with the corresponding listingset lugs into and out of the paths of the pins, a segment and pinion through which movement is imparted to the reset shaft, an operating lever, connections between the operating lever and the comb for shiftingthe reset lugs into the paths of the resetting pins during its initial forward movement and out of the paths during its final return movement, and connections between the operating lever and the segment for effecting the resetting of' the listing wheels during its terminal forward movement.

7. In a listing machine, a series of listing.

wheels with reset lugs, a reset shaft with resetting pins on which the listing wheelsare mounte a comb for sliding the wheels longitudinally on the shaft and shifting the' meetings into and outof the paths of the pins, a segment and pinion through which movement is imparted to the reset shaft, an operating lever having a movement transverse to the movement of the comb, a cam through which the comb is shifted in one direction by the operating lever, 'a bellcrank lever through which the comb is shifted in the opposite direction by the operating lever,"and connections between the. operating lever andfthe segment forefi'ecting the resetting ofthe listing wheels.

8. I'n-a listing machine adapted for association with an adding machine which comprises a series of computing mechanisms of successive denominations, the combination of a series of listing wheels, a gear connecting each computing mechanism with the cor- 'responding'listing wheel, a reset shaft, a segment and. pinion through which movement is imparted to the reset shaft, an operating lever, connections between the operating lever and the segment for effecting the resetting of the listing wheels, and connections from the operating lever for efiecting the separation between the listin wheels and, gea'rconnections with the ad ing machine.

9. In a listing machine, a series of listing wheels withtyp'e faces on their peripheries and notches between the type faces, and a spring ressed inking roller for each wheel, the roller being positioned so as to rest in a notch and serve to locate the wheel with one of its type in printing position,

CLIFTON BURT GORELL. 

